Water fitting for bath tubs or similar equipment

Abstract: The water fitting comprises a hollow body (4) adapted to be mounted in an opening (9) of a tub by means of a ring nut (10) which is screwed on to said body so as to tighten the opposite edges of the opening between respective peripheral surfaces of the hollow body and the ring nut. A ring (15) is mounted on the body (4), so as to enclose the external edge of its peripheral surface (12), and has a front wall (16) that covers said surface (12) of the body (4), while situating itself between said surface and the tub. The body (4) is provided with a vent hole (18) and a second through-hole (19) extending outwards from said surface (12) of the body. Sealant material can be injected through said through-hole (19) into the hollow spaces between the body (4), the ring (15) and the wall (8) of the tub.

Description: This invention relates to an improved type of water fitting for bath tubs or similar equipment for sanitary uses. In particular, but not exclusively, the present invention refers to an improved type of water outlet adapted to be used to whirlpool-type bath tubs or pools to the purpose of delivering a mixture of air and water under pressure, as this is described for instance in EP-A-0 560 097. Such a water delivery outlet comprises mainly a manifold body provided with an inlet connection for letting in water under pressure, at least an air suction connection, and a swiveling outlet nozzle for said air-water mixture. The water delivery outlet is mounted on the wall of a whirlpool-type bath tub, in correspondence of an appropriate hole and under arrangement of at least a sealing means therebetween, by means of a front ring nut screwed on to the front inner surface of the manifold body. In order to ensure effective water-tight sealing in correspondence of the hole in the tub wall, so as to exclude water leakages or seepages that could bring about flooding and/or corrosion problems, it is a current practice to apply a layer of silicone-based sealant on the surfaces of the manifold body and the ring nut between which the edge of the hole in the tub wall is then tightened. On the other hand, when the ring nut is screwed on to the manifold body, the silicione tends to get squeezed away, thereby giving rise to unattractive blurs or smears on the walls of the tub (particularly on those exposed to the sight) which can act as dirt traps. It is therefore necessary that these smearings be accurately removed through an additional, undesired operation which is particularly difficult and toilsome and which could also quite easily cause the surfaces of the tub to be accidentaly scratched. The above described assembly, with the related drawbacks, is generally carried out even in the case in which the water fitting comprises an outlet or drain connection, a fixed water-inlet or water-delivery nozzle, etc. It is therefore a purpose of the present invention to provide a water fitting for bath tubs, or similar sanitary equipment, which has such a simple structure as to enable it to be mounted on to the tub in a particularly convenient, reliable and quick manner. According to the present invention, such an aim is reached in a water fitting for bath tubs, or similar sanitary equipment, comprising the features as claimed in the appended claims. Features and advantages of the present invention will be more readily and clearly understood on the basis of the description which is given below by way of nonlimiting example with reference to the accompanying drawing, in which the Figure is a schematical view of the longitudinal section of a preferred embodiment of the water fitting according to the invention. With reference to the above cited Figure, it can be noticed that the water fitting is for instance constituted by a delivery outlet of a whirlpool-type bath tub or pool, whose general structure and operation are substantially similar to the ones described in the afore cited specification EP-A-0 560 097, so that they will not be described here any further. The water fitting comprises mainly a hollow manifold body 4 provided with at least an inlet connection 5, through which it is capable of receiving water under pressure, as well as at least a suction connection 6, through which air can be taken into the hollow body of said manifold 4. The fitting is additionally provided frontally with a swiveling outlet nozzle 7 which has preferably an adjustable through-flow section and is capable of delivering a mixture of air and water under pressure. Such a fitting also includes a front ring nut 10 and is adapted to be mounted on the wall 8 of a whirlpool-type bath tub, or any similar sanitary equipment, in correspondence of an appropriately provided opening 9. The assembly of the fitting is carried out by means of the ring nut 10 which is screwed on to the front inner surface of the manifold body 4, whereas such an inner surface is quite obviously provided with an appropriate screw thread 11. In particular, the opposite edges of the opening 9 are adapted to be tightened between respective peripheral surfaces 12 and 13 of the manifold body 4 and the ring nut 10, respectively. In a preferred manner, furthermore, in correspondence of the surface 12 of the manifold body 4 there is provided a peripheral groove 14, which can be used as the seat for a sealing gasket or similar means (not shown) in a per sè known way. According to the invention, however, such a sealing means is not necessary. It is in fact provided for the use of an elastic ring 15 which is adapted to be mounted on the manifold body 4 so as to elastically enclose the outer edge of the peripheral surface 12. The ring 15 has a substantially L-shaped cross-section, with a front wall 16 that extends radially for a certain length so as to at least partially cover the surface 12 of the manifold body 4. As a consequence, when the water delivery outlet fitting is mounted on to the wall 8, the surface 12 comes to rest against the respective edge of the opening 9 through the interposition of the wall 16 of the ring 15 therebetween. To this purpose, the wall 16 preferably comprises at least a lip-shaped annular portion 17 adapted to act as a sealing gasket. The lip portion 17 is shown in the Figure both in a relaxed position (by dashed line) and in an as-mounted position (by solid line). In the manifold body 4 there are provided at least a vent through-hole 18 and a further through-hole 19, both of them extending outwards starting from the surface 12 of the manifold body itself, preferably in correspondence of the groove 14. In a preferred manner, said holes 18 and 19 are furthermore provided on the surface 12 in diametrically opposed positions. The through-hole 19 has an adequate diameter, which is greater than the one of the vent hole 18, and in a preferred manner it extends with an increasing diameter towards the rear portion of the water fitting so as to build a seat adapted to accomodate the outlet spout (not shown) of an application device for the delivery of silicone or similar liquid or semi-liquid sealant masses. The installation of the water fitting according to the present invention is carried out in the already described way, ie. by screwing on the ring nut 10 to the manifold body 4 under interposition of the ring 15 between the wall 8 and the surface 12. Upon applying the water outlet mouth on to the wall 8, in a clearly convenient manner, an adequate and easily controllable amount of silicone sealant is injected with a proper application device into the through-hole 19 from the outside of the manifold body 4. Through said hole 19, the silicone sealant spreads along the groove 14 and into the hollow space existing between the ring 15 and the surface 12 of the manifold body 4, as well as into all of the therewith communicating hollow spaces that possibly exist between the ring nut 10, the manifold body 4, the ring 15 and the wall 8. Such a distribution of the silicone sealant mass is favoured by the provision of the vent hole 18, which enables an air volume corresponding to the amount of silicone mass being injected through the hole 19 to freely escape therethrough. Therefore, with a single, simple operation a perfect water-tight seal is achieved in correspondence of the opening 9 of the wall 8, while avoiding any undesired outspread of sealant mass. It will be appreciated that the above described water fitting may be the subject of any of a number of possible modifications, within the scope of the appended claims. Furthermore, as it has already been pointed out, instead of the above described water delivery and outlet arrangement the water fitting may be constituted by any other device, such as a drain manifold, a fixed water inlet injector and the like, as may possibly be associated with a bath tub or any other sanitary equipment. All such other equivalent devices (not shown in the Figure for greater simplicity) comprise a tubular body 4 and a ring nut 10 that can be screwed on for assembly in correspondence of an opening 9 of a bath tub or similar sanitary equipment, much in the same way as previously described.

Claims: Water fitting for bath tubs or similar equipment, comprising a hollow body and a ring nut, the hollow body being adapted to be mounted in correspondence of an opening in a wall of the tub or equipment by means of said ring nut, which is frontally screwed on to said body so as to tighten the opposite edges of the opening between respective peripheral surfaces of the hollow body and the ring nut, respectively, characterized in that : a ring (15) is mounted on the body (4) so as to enclose the external edge of its peripheral surface (12), said ring (15) having a front wall (16) that extends radially for a certain length so as to at least partially cover said surface (12) of the body (4), while situating itself in a mounted state between said surface and said wall (8) of the tub or equipment, the peripheral surface (12) of the hollow body and/or the front wall (16) of the ring being arranged to provide for a peripherally extending hollow space communicating into the hollow spaces possibly existing between the ring nut (10), the hollow body (4), the ring (15) and the wall (8); said body (4) is provided with at least a first vent through-hole (18) and at least a second through-hole (19) extending outwards from said surface (12) of the body; said peripherally extending hollow space and said further hollow spaces being arranged to receive an amount of fluid or semi-fluid sealant material which is injected through said second through-hole (19), so as to provide a water-tight seal between the water fitting and the opening (9) in the tub or equipment. Water fitting according to claim 1, characterized in that said through-holes (18, 19) are provided on said surface (12) of the body (4) in respective diametrically opposed positions. Water fitting according to claim 2, characterized in that said second through-hole (19) extends with an increasing diameter towards the outside of the body (4), so as to build a seat adapted to accomodate the spout of a device intended to apply said sealant material. Water fitting according to claim 1, characterized in that said front wall (16) of the ring (15) comprises at least a lip-shaped annular portion (17) which is adapted to act as a sealing gasket. Water fitting according to claim 1, characterized in that the peripheral surface of the body comprises a perimetral groove, said through-holes (18, 19) extending from said surface (12) in correspondence of said groove (14).

Inventors: SANDRIN GIANNI, SANDRIN, GIANNI
Applicants: ALBATROS SYSTEM SPA, ALBATROS SYSTEM S.P.A.
Application year: 1994
Main classification: E03C1
IPC codes: E03C1